Captain Quirk

Captain Quirk was the chief antagonist of the adventure video-game known as Space Quest 5: The Next Mutation.
Captain Quick began as an arrogant bully who sought make Roger's life a misery, he also enjoyed abusing his authority such as when he had Cliffy imprisoned for a scuffle in with one the members of the Goliath insulted the crew of the Eureka for being mere garbage collectors. Captain Quirk had hopes of having a romantic relationship with Ambassador Beatrice but was not much of a lady's man, being quite chavaunistic - he was also illegally dumping toxic waste on populated planets as part of a conspiracy with Genetix.

Captain Quirk's ship (the Goliath) would later be attacked by mutants and he was transformed into a mutant himself and headed towards Starcon with the intent of mutating all creatures in the galaxy into monsters like he was.Ultimately Roger managed to enter the Goliath and with Cliffy managed to cure most of the crew of their horrible mutation, however Captain Quirk escaped in a shuttle and flew straight into a large mass of mutagenic sludge, transforming into a colossal monster that began to terrorize the galaxy.

Quirk's ultimate degeneration into a monstrous blob.

Roger had the Eureka fire on the now monstrous Quirk but the weapons had little effect on him, thus Roger used the ship's vacuum to suck Quirk into a containment cell.Knowing the containment cell couldn't hold Quirk for long Roger activated the Eureka's self-destruct program and made his escape, taking the Goliath to Starcon to tell them what had transpired - as the Goliath flew to safety Captain Quirk was seemingly destroyed as the Eureka exploded violently in space.

​Trivia

Quirk seems to be a parody of James T. Kirk from Star Trek.

He's similar to Gaston Legume as both are narcissistic bullies who wants the hero's love interest for themselves.